Write the structure
Start with a full HTML document or a small fragment. The editor keeps the source visible while you shape the page.
Browser HTML editor
HTML Editor Online
Write HTML directly in your browser. Run the page in a safe live preview, then download the file or send it to HTMLShare when it is ready for review.
No login to runLocal draftSandboxed preview
Browser lab / 001
Source → browser
01 html sourceeditable
02 iframe sandboxisolated
03 preview stateready
A small, focused place to make a browser idea visible before it becomes a project.
The workbench
Write it. Run it. See it.
Your HTML draft stays in this browser. Use ⌘ / Ctrl + Enter to refresh the preview.
htmlshare-editor / untitled.html
Preview is live
Loading HTML draft…
Live previewsandbox
Desktop · 1440 × 720
Run it in a browser
Refresh a sandboxed HTML preview and check the result at desktop, tablet, or mobile width.
Take the HTML with you
Copy or download a standalone HTML file. When the draft needs feedback, send it into HTMLShare as a review link.
html editor online
What is an HTML editor online?
An online HTML editor is a browser-based coding surface for writing markup and checking the rendered result without opening a local development environment. This editor keeps the first loop small: write HTML, run it, and see the browser preview beside the source.
html editor online
HTML editor vs HTML viewer
Use an editor when you still need to change the code. Use an HTML viewer when you already have a file or ZIP and only need to inspect the rendered page. HTMLShare supports both paths, but the viewer and preview-link pages remain focused on existing files and review handoff.
html editor online
Test HTML online in a browser
Use the editor to test browser-ready HTML as you write: check structure, text, styles, links, and lightweight client-side interactions in the embedded preview. This is a manual browser check, not an automated test runner or server-side test environment.
html editor online
Preview an HTML email in your browser before sending
Use the embedded preview to check an HTML email’s layout, copy, links, images, relative paths, and narrow mobile width before handing the markup to your email platform. The browser check helps with visible review, but it does not simulate Gmail, Outlook, or Apple Mail, send the message, or verify deliverability.
html editor online
Run static HTML in the browser
Static HTML can render directly in a browser preview. A server, database, npm install, or build step is outside this lightweight editor; move a browser-ready result into a full project when the work needs those capabilities.
Know the boundary
An editor for static browser work.
This is a lightweight HTML editor, not a full app runtime. It is a good fit for HTML documents, landing pages, prototypes, small tools, and visual experiments that can render in a browser without a server.
HTMLShare editor
Quick HTML experiments, manual browser checks, and a path to a review link.
Focused on HTML source; it does not provide collaboration, a backend, or a package build pipeline.
Local code editor
Larger projects, Git workflows, extensions, local files, and framework development.
Requires local setup and is less convenient when someone only needs a quick browser experiment.
Code playground
Public snippets, community examples, and richer collaboration features.
May be more platform than a small private draft needs, and its sharing model may not match a review-only workflow.
Production host
Permanent public sites with domains, analytics, deployment workflows, and server-side features.
More setup than a first browser run or an early design review requires.
How can I run HTML code online?
Open the HTML editor, write or paste HTML, and click Run preview. The current page renders in the browser beside your source.
Can I test HTML online?
Yes. Write or paste static HTML, run it, and manually test the rendered page in the sandboxed preview at desktop, tablet, and mobile sizes. This does not provide automated tests or a backend.
What can I edit here?
This is an HTML-only editor. Paste a complete HTML document or a small HTML fragment, then run it in the browser preview.
Do I need to sign in to use the editor?
No. Editing and running the preview work in the browser without an account. Your draft is saved locally on this device; sign in only when you choose a hosted HTMLShare project workflow.
Can I download the HTML I wrote?
Yes. Copy HTML to the clipboard or download a standalone HTML file containing your current source.
Is this an online HTML compiler?
People often call browser tools like this an HTML compiler online. Static HTML is parsed and rendered by the browser rather than compiled by a server, so this editor is designed to run and preview browser-ready HTML.
Can I share my online HTML editor result?
Yes. Use the HTMLShare publisher after editing to create a browser preview link for a client, teammate, product review, QA check, or HTML email review. The browser link is not an email-client simulation or sending workflow.
Ready for review?
Turn this draft into one browser link.
Keep editing locally, or open the HTMLShare publisher to preview the standalone file, check it on a device, and share it with a teammate or client.